Patent application number | Description | Published |
20090139971 | Method And Apparatus For Welding With Mechanical Arc Control - A method and apparatus for feeding wire from a source of wire to a weld includes one or more motors disposed adjacent the wire to drive the wire to the weld. A buffer is disposed between the source and an arc end of the torch. Another motor may be disposed near the wire source. A wire tension controller may be provided. The one or more motors advance and retract the wire, and wire is stored, or the path length altered, when the wire is retracted. | 06-04-2009 |
20100089889 | Method And Apparatus For Controlling A Welding System - A method and apparatus for welding includes one or more of a welding type power source, a feedback circuit, a wire feeder and a controller. The controller preferably has an eta control circuit responsive to the feedback. | 04-15-2010 |
20110114612 | Method and Apparatus For Welding - A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode. | 05-19-2011 |
20120061362 | Method and Apparatus For Welding With Short Clearing Prediction - A method and apparatus for providing welding-type power is disclosed and includes a short clearing prediction module that uses the second derivative with respect to time of the output voltage, or an error between a measured output voltage and an output voltage predicted using the first derivative with respect to time of the output voltage. | 03-15-2012 |
20130270245 | Method and Apparatus For Welding - A method and apparatus for welding include initiating a pulse welding process includes initiating a welding arc by providing CC type welding power, maintaining the arc by providing CV type power. Then, pulse type welding power is provided. The method and system can be used to start short circuit, or other welding processes by providing short circuit power, or welding power of a given mode, instead of providing pulse power. Also, in one alternative, a method and system of initiating a pulse, short circuit, or given welding process includes initiating a welding arc by providing CC type welding power at least until a pseudo-equilibrium for the arc is established. Then, providing welding power in a pulse, short circuit, or the given mode. | 10-17-2013 |
Patent application number | Description | Published |
20100224606 | SHORT CIRCUIT DETECTION SYSTEMS AND METHODS - A constant voltage (CV) welding process power supply is provided. The power supply includes a controller configured to detect a short circuit event in a CV welding process and increase a welding current based upon a periodically computed voltage error and a first gain to attempt to clear the short circuit event. The controller is further configured to detect whether the short circuit event has cleared after the first current increase. If the short circuit event has not cleared, the controller increases the welding current based upon the periodically computed voltage error and a second gain higher than the first gain. | 09-09-2010 |
20100224607 | WELDING PROCESS EMPLOYING VARIABLE MINIMUM CURRENT - A constant voltage (CV) welding process power supply including a controller that implements a variable minimum current is provided. The controller is configured to periodically compute a running current value during a welding operation. The controller is also configured to periodically compute a minimum current value based on a difference between the running current value and a preset offset value, wherein the preset offset value remains constant throughout the welding operation. | 09-09-2010 |
20110114613 | COMPACT WELDING WIRE FEEDER - Embodiments of a welding system include a compact wire feeder adapted to feed welding wire having a diameter up to approximately 5/64 inches disposed on a wire spool having an outer diameter of approximately 8 inches. The compact wire feeder may include a housing, a spool mounting hub disposed in the housing and adapted to receive the wire spool, and a wire drive assembly having a motor adapted to apply an output torque to a shaft of a gearbox to drive the welding wire from the welding spool to a welding torch. | 05-19-2011 |
20120248080 | WELDING ELECTRODE STICKOUT MONITORING AND CONTROL - Stickout of a welding electrode wire from a welding torch is determined during welding, and based upon a welding parameter, such as welding current. Different relationships are used for the determination depending upon whether the welding wire is in a short-circuit condition or an arc condition. The stickout may be converted to a standardized unit of measure to make it readily understandable to an operator. The stickout may be logged and associated with other parameters and information, such as workpiece, operator, welding system, date and time. The stickout may be used as the basis for an alarm or a disabling operation. Moreover, the stickout may be provided on a readout for the operator. It may also be used as a basis for controlling a wire feeding apparatus that retracts the welding wire to a desired stickout following a weld. | 10-04-2012 |
20120248081 | METHOD FOR DETERMINING ARC CONSISTENCY IN PULSED GAS METAL ARC WELDING SYSTEMS - A welding system or an enterprise using welding systems can communicate with cloud-based resources for the provision of services and products to facilitate the welding operations. The communications may be via wired or wireless media, and may be direct, or through other components, such as enterprise networks, peripheral devices, and so forth. The cloud-based resources may provide for storage of data, particularly welding data, processing of data, welding protocols, specifications and processes, financial transactions for the purchase, licensing or use of welding-related products and services, welding training, and so forth. | 10-04-2012 |
20130206740 | OPTICAL-BASED WELD TRAVEL SPEED SENSING SYSTEM - A travel speed sensing system includes an optical sensor configured to be coupled to a welding torch. The optical sensor is configured to sense light incident on the optical sensor, and the travel speed sensing system is configured to determine a travel speed of the welding torch, a direction of the welding torch, or both, based on the sensed light. | 08-15-2013 |
20130206741 | HELMET-INTEGRATED WELD TRAVEL SPEED SENSING SYSTEM AND METHOD - A welding system includes a first sensor associated with a welding helmet and configured to sense a parameter indicative of a position of a welding torch relative to the welding helmet. The travel speed sensing system also includes a processing system communicatively coupled to the first sensor and configured to determine a position of the welding torch relative to a workpiece based on the sensed first parameter. | 08-15-2013 |
20130208569 | SOUND-BASED WELD TRAVEL SPEED SENSING SYSTEM AND METHOD - A weld travel speed sensing system includes at least one sound sensor configured to sense a sound generated to allow determination of a position of a welding torch. The weld travel speed sensing system is configured to determine a position of a point on the welding torch based on the sensed sound. | 08-15-2013 |
20130262000 | DEVICES AND METHODS FOR ANALYZING SPATTER GENERATING EVENTS - A method for monitoring a spatter generating event during a welding application. The method includes capturing data that corresponds to a welding current of the welding application. The method also includes detecting parameters associated with a short circuit from the captured data. The method includes analyzing the detected parameters to monitor the spatter generating event during the welding application. | 10-03-2013 |
20140027426 | ROOT PASS WELDING SOLUTION - The present systems and methods relate generally to the field of welding systems, and particularly to flux-cored arc welding systems with self-shielded electrodes (FCAW-S). In an embodiment, a tubular welding wire includes a core and a sheath disposed around the core. Further, the tubular welding wire includes greater than approximately 2.4% glassy slag promoter by weight. | 01-30-2014 |
20140117000 | WELDING PROCESS EMPLOYING VARIABLE MINIMUM CURRENT - A constant voltage (CV) welding process power supply including a controller that implements a variable minimum current is provided. The controller is configured to periodically compute a running current value during a welding operation. The controller is also configured to periodically compute a minimum current value based on a difference between the running current value and a preset offset value, wherein the preset offset value remains constant throughout the welding operation. | 05-01-2014 |
20140175072 | SYSTEM FOR ARC WELDING WITH ENHANCED METAL DEPOSITION - A welding system includes a power supply configured to output power to a welding device. The power supply is configured to alternate the power output between an arc phase and a hotwire phase. The power output in the arc phase produces an arc between a welding electrode and a workpiece, and the power output in the hotwire phase heats the welding electrode without producing an arc. | 06-26-2014 |
20140183176 | SYSTEM AND METHOD FOR CONTROLLING AN ARC WELDING PROCESS - A welding system includes an electrode configured to be advanced toward a workpiece and a power supply configured to provide a flow of electricity to the electrode for generating a welding arc between the electrode and the workpiece. The welding system also includes a first sensor configured to sense a light intensity of the welding arc and a second sensor configured to sense a current provided to the electrode via the power supply. In addition, the welding system includes a controller communicatively coupled with the first and second sensors and configured to modify the light intensity with respect to the current. The controller is configured to control a welding parameter of the welding system based on the modified light intensity. | 07-03-2014 |
20140312021 | WELDING SYSTEM HAVING A WIRE-SPECIFIC INTERFACE - A system having a welding wire hub with a wire-specific interface. The wire-specific interface may be configured to enable mounting with a first wire spool and configured to prevent mounting with a second wire spool. In some embodiments, the first and second wire spools have different welding wire types. | 10-23-2014 |
20140367370 | SYSTEMS AND METHODS FOR ANOMALOUS CATHODE EVENT CONTROL - A method of operating a welding system includes supplying a weld current and a weld voltage to an electrode via a plurality of pulse periods, where each pulse period of the plurality of pulse periods includes a background phase and a peak phase. The method also includes detecting the occurrence of an anomalous cathode event during the background phase of a first pulse period of the plurality of pulse periods based at least in part on when a voltage value of the weld voltage is greater than a detect voltage. The method also includes controlling the weld current to a desired current during a portion of the anomalous cathode event. The portion includes an interval of the background phase of the first pulse period, and the weld current is controlled independent of the weld voltage during the portion of the anomalous cathode event. | 12-18-2014 |
20150076119 | SYNCHRONIZED ROTATING ARC WELDING METHOD AND SYSTEM - A welding method includes feeding a welding electrode axially from a welding torch, moving the welding electrode radially in a desired pattern with respect to a central axis of the welding torch by a motion control assembly within the welding torch, transmitting from control circuitry a signal corresponding to a position of the welding electrode relative to a weld joint or weld pool, advancing the welding torch or a workpiece to establish a weld, and transferring material from the welding electrode to a first location in an area of the weld pool. The welding electrode moves radially while feeding the welding electrode from the welding torch, the material from the welding electrode is transferred to the first location during a first cycle of the desired pattern, and the first location is controlled based at least in part on the signal. | 03-19-2015 |
20150114940 | EXTRACTION OF ARC LENGTH FROM VOLTAGE AND CURRENT FEEDBACK - A method of controlling a welding system includes controlling a weld current supplied to an electrode at a current ramp rate and determining an arc length based at least in part on the controlled weld current and a changing arc voltage. The arc length includes a distance between the electrode and a workpiece, and the arc voltage includes a voltage between the electrode and the workpiece. | 04-30-2015 |
20150375326 | SYSTEMS AND METHODS FOR THE CONTROL OF WELDING PARAMETERS - A welding system includes a welding torch, a power supply, one or more sensors, and a controller is provided. The welding torch advances an electrode toward a workpiece in a first direction. The power supply provides a flow of electricity to the electrode for generating a welding arc between the electrode and the workpiece. Generating the welding arc generates a weld puddle behind the welding arc as the electrode moves in the first direction. The sensor generates a voltage output signal based on the amount of light received from the weld puddle. The controller is communicatively coupled with the sensor to receive the voltage output signal, and the sensor controls a welding parameter of the welding system based the voltage output signal. | 12-31-2015 |
20150375331 | SYSTEM AND METHOD FOR CONTROLLING WIRE FEED SPEED - A method of controlling a welding system includes providing a welding wire to a welding torch at a first wire feed speed, providing a pulsed power output to the welding wire via a contact point of the welding torch, determining, utilizing a sensing system, a contact-point-to-work-distance (CPWD) between the contact point and a workpiece, and changing, utilizing a controller, the wire feed speed of the welding wire to a second wire feed speed based at least in part on the determined CPWD. | 12-31-2015 |